Delocalized Quantum States Enhance Photocell Efficiency
Chemical Physics
2015-06-23 v1 Materials Science
Quantum Physics
Abstract
The high quantum efficiency of photosynthetic complexes has inspired researchers to explore new routes to utilize this process for photovoltaic devices. Quantum coherence has been demonstrated to play a crucial role within this process. Herein, we propose a three-dipole system as a model of a new photocell type which exploits the coherence among its three dipoles. We have proved that the efficiency of such a photocell is greatly enhanced by quantum coherence. We have also predicted that the photocurrents can be enhanced by about 49.5 % in such a coherent coupled dipole system compared with the uncoupled dipoles. These results suggest a promising novel design aspect of photosynthesis-mimicking photovoltaic devices.
Cite
@article{arxiv.1411.0713,
title = {Delocalized Quantum States Enhance Photocell Efficiency},
author = {Yiteng Zhang and Sangchul Oh and Fahhad H. Alharbi and Greg Engel and Sabre Kais},
journal= {arXiv preprint arXiv:1411.0713},
year = {2015}
}
Comments
8 figures, submitted